{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1319519",
    "entityType": "User",
    "nonce": "0x45b2f47b7bca08e91d1c3a7835ef49c39ca575af086d2bd307a5c1c70c6d746d",
    "signature": "0x0a38d1d207b485a7584f0c55fe08db5cc316d987f450306badb3e1dcab83f0886ccf71bdf7790732db4bcc9d2e0ad9a5c1ed61f88f5e1b297f37913e75715a5d1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}